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marshall27 [118]
3 years ago
14

Please help me with this question, I need it to pass the class!!

Mathematics
1 answer:
kakasveta [241]3 years ago
5 0

Answer:

  cos(20°)

Step-by-step explanation:

The "cofunction" is the function having the same value for the complement of the angle that this function has for the angle.

The cofunction of sine is cosine. The complement of 70° is 90° -70° = 20°.

  sin(70°) = cos(20°)

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